Kohana 3.3 FirePHP module Profiling and Debugging your Kohana through Firebug Installation: Download this module and add it to your MODPATH Update submodules inside of this modules folder Enable it in the bootstrap Notes: You must install Firebug and FirePHP to use this module FirePHP sends its' data through headers, meaning: Your server probably limits header size to ~8KB Outputting large datasets can break this Although there's a catch for PRODUCTION mode inside of the init file, it's highly recommended that you disable this module in production